GORMAN-RUPP 03H1-GR, Инструкция по установке, эксплуатации и обслуживанию

Страница: 31 / 35

OM-01194 0 SERIES
MAINTENANCE & REPAIR PAGE E - 11
Refer to OPERATION , Section C, before putting
the pump back into service.
GEARBOX DISASSEMBLY
(Figure 2)
When the pump is properly operated and main­
tained, the gearbox should not require disassem­
bly. Disassemble the gearbox
only when there is
evidence of wear or damage.
Gearbox disassembly in the field is not rec­
ommended. These operations should be
performed only in a properly equipped
shop by qualified personnel.
If the gearbox requires disassembly, first disas­
semble the pump components as indicated in
PUMP AND SEAL DISASSEMBLY .
Before attempting to disassemble the gearbox, re­
move the lower most pipe plug (23) and drain the
lubricant. Clean and reinstall the pipe plug.
With the pump end components removed, use a
hammer and punch to drive the dowel pins (31) out
of the gearbox. Remove the hardware (28, 29 and
30) securing the seal plate (27) to the gearbox
housing (25). Slide the seal plate and oil seal (3) off
the shaft. Remove the seal plate gasket (26). In­
spect the oil seal (3) and, if replacement is re­
quired, press it from the seal plate.
Remove the shaft key (15). Remove the hardware
(19 and 20) and slide the cover plate (9) and as­
sembled oil seal (12) off the shaft. Remove the cov­
er plate gasket (8) and bearing adjusting shims (13
and 17). Tie and tag the shims, or measure and re­
cord their thickness for ease of reassembly. In­
spect the oil seal (12) and, if replacement is re­
quired, press it from the cover plate.
Slide the drive shaft (14), bearings (18 and 18A),
helical gear (21), pinion shaft (2) and bearings (7
and 7A) out of the seal plate side of the gear hous­
ing. It is not necessary to remove the dowel pins
(31) unless they are bent or damaged. If replace­
ment is required, remove them from the gear hous­
ing.
After removing the shafts and bearings, clean and
inspect the bearings
in place as follows.
To prevent damage during removal from
the shaft, it is recommended that bearings
be cleaned and inspected
in place . It is
strongly recommended that the bearings
be replaced any time the shaft and bear­
ings are removed.
Clean the gear housing, seal plate, shafts and all
component parts (except the bearings) with a soft
cloth soaked in cleaning solvent. Inspect the parts
for wear or damage and replace as necessary.
Most cleaning solvents are toxic and
flammable. Use them only in a well‐ven­
tilated area free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain­
ers.
Clean the bearings thoroughly in fresh cleaning
solvent. Dry the bearings with filtered compressed
air and coat with light oil.
Bearings must be kept free of all dirt and
foreign material. failure to do so will greatly
shorten bearing life.
Do not spin dry bear­
ings. This may scratch the balls or races
and cause premature bearing failure.
Rotate the bearings by hand to check for rough­
ness or binding and inspect the bearing balls. If ro­
tation is rough or the bearing balls are discolored,
replace the bearings.
The bearing tolerances provide a tight press fit
onto the shafts and a snug slip fit into the gear
housing and seal plate. Replace the bearings,